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Patented May 30, 189.3; v

(No Mbde l.) I

J. H. M. BEATY.

DUST PROOF SASH FRAME.

M 1 ur: r

FIG.

' UNITED STATES.

PATENT, OFFiCEQ J. H. M. BEATY, or COLUMBIA, SOUTH CAROLINA.

DUSYTY-IPRJOOIFSASH-VFRAIM E.

$PECIFICATION forming part of Letters Patent No. 498,225, dated May 30,1893.

Application filed January 26,1893- Serial No. 459,'799. (N0 model.)

lowing is a specification.

This invention relates to sash-frames, and has for its object to providean anti-rattling and anti-frictional dustproof sash-frame that willaccommodate itself automatically to the diiference in size of thesash-frame produced by the swelling or contraction thereof; the

parts thereof being simple and effective in their operation and readilyunderstood, and

with this object in ,view the invention con sists of the constructionand arrangement of the parts as will be more fully'hereinafter describedand claimed. v

In the drawings: Figure 1 is an elevation of a window and sash-frame, aportion of the window-frame being broken away, and show-' ing theimproved construction in connection with the sash-frame; Fig.2 is alongitudinal vertical section through the center of the parts-shown byFig. 1. Fig. 3 is a detail perspective View of the siderail of the sashframe and the friction-bar of the improved construction showndisconnected fromeach other. v

Similar numerals of reference indicate corresponding parts in theseveral figures of the drawings.

Referring to the drawings, the numeral 1 designates a window-frame,which may be located in the side of a car or in any other desiredposition, and wherein is mounted a sashframe 2, having its left-handvertical side-rail 3 formed with a recess 4 in its outer edge that hasrecesses 5 of greater depth extending inward to the said rail, nearerthe upper and lower ends thereof, and wherein are seated crescent-shapedsprings 6, that are held in position by single centrally-located dowelpins or rivets 7, and the free ends of the said springs normally standoutward beyond the plane of the termination of the said side-rail. Ifdesired, however, these springs may be replaced by any well knownmechanical equivalent, and thereagainst is loosely held a cushion stripor frictional bar 8, of the same thickness as the rail 3, andsubstantially of T- strip or bar are adapted to engage to hold thelatter against vertical movement and away from its properpositionrelatively to the rail 3. By this means it will be seen that a fasteningfor the said strip or bar becomes unnecessary and that the mounting ofsaidparts is simpliq, tied with the same relative amount of efti-.

ciency of operation.

The springs 6 operate against the cushion strip or frictional bar 8,keeping the latter up against the Window-frame at all times. When thesash-frame swells it cannot bind between the window-frame, for there isa small space allowed between the sash-frame and the said cushion strip.The swelling of-the sash-frame partially closes this small space andforces the springs backward into their recesses, and by this means itwill-be seen that an anti-friction sash-frameis provided. When thesash-frame shrinks, the springs force the'c'ushion strip outwardly andhold it in contact'witli the .win- I dow-frame, thereby formingananti-rattling sash-frame. By keeping the sash-frame closely fitted tothe window-frame in the manner set forth, and allowing no crack orcrevice whatever, it will be seen that all air and dust are excluded. g

It will be understood that the cushion strip has just enoughplaylongitudinally' between the metal plates -9 to permit the springs toadjust the same outwardly and obviate lost motion when the sash-frame israised or lowered.

The improved attachment is adapted to be placed on the left side of thesash-frame, and therefore does not interfere with any catches used onthe window-frame and adapted to engage the sash-frame. Further, thewidth of 6o against which the opposite ends of the said I that thecushion strip is quite narrow, and by this means all the working partsare hidden behind the window-stop, giving the appearance, outwardly, ofa solid sash-frame.

It will be understood that the sash-frame may be of any size or relativeshape so long as it is applicable to receive the improved attachment,and may be cheaply manufactured and applied.

Having described the invention, what is claimed as new is- Incombination with a window-frame, of a sash-frame having one of the railsthereof formed with a recess in the edge thereof from which deeperrecesses extend inward near the l the presence of two witnesses.

J. H. M. BEATY.

Witnesses:

HERBERT GAUTHEN, D. E. MCDOWELL.

